Lilium cv Acapulco was transformed with a defective cucumber mosaic virus (CMV) replicase gene (CMV2-GDD) construct using Agrobacterium tumefaciens. Four lines were analyzed for gene expression and resistance to CMV-O strain. Expression of the CMV2-GDD gene in the transgenic plants was confirmed by reverse transcription PCR (RT-PCR). When these four lines were mechanically inoculated with CMV-O, no signal of coat protein (CP) messages using RT-PCR was detected in newly produced leaves of two transgenic lines. Dot-immunobinding assay (DIBA) of CP was performed to examine the presence of the CMV in the newly produced leaves of challenged plants. Results, similar to those obtained with RT-PCR of the CP messages, were observed in DIBA. Therefore, our results imply that the two lines show increased levels of resistance to CMV, and CMV-GDD replicase gene is an effective construct that has protection against CMV in Lilium. © 2011 Springer Science+Business Media B.V.
CITATION STYLE
Azadi, P., Otang, N. V., Supaporn, H., Khan, R. S., Chin, D. P., Nakamura, I., & Mii, M. (2011). Increased resistance to cucumber mosaic virus (CMV) in Lilium transformed with a defective CMV replicase gene. Biotechnology Letters, 33(6), 1249–1255. https://doi.org/10.1007/s10529-011-0550-7
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